120020010001 has 2 divisors, whose sum is σ = 120020010002. Its totient is φ = 120020010000.

The previous prime is 120020009947. The next prime is 120020010043. The reversal of 120020010001 is 100010020021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 106405787601 + 13614222400 = 326199^2 + 116680^2 .

It is a cyclic number.

It is not a de Polignac number, because 120020010001 - 2⁹ = 120020009489 is a prime.

It is not a weakly prime, because it can be changed into another prime (120020010601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60010005000 + 60010005001.

It is an arithmetic number, because the mean of its divisors is an integer number (60010005001).

Almost surely, 2^120020010001 is an apocalyptic number.

It is an amenable number.

120020010001 is a deficient number, since it is larger than the sum of its proper divisors (1).

120020010001 is an equidigital number, since it uses as much as digits as its factorization.

120020010001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 120020010001 its reverse (100010020021), we get a palindrome (220030030022).

The spelling of 120020010001 in words is "one hundred twenty billion, twenty million, ten thousand, one".